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This is a cut-and-paste port of the cx18-alsa driver to create an ivtv-alsa interface module for the ivtv driver. It is not actually hooked-up to the PCM stream DMA buffers from the ivtv driver yet. That will be done in a coming change, since that portion is so very different from the cx18 driver. This code has all or more of the bugs and shortcomings of the cx18-alsa interface driver: inconsistent use of itvsc->slock, ivtv-alsa-mixer.c is dead code, assumes 48 ksps regardless of the actual setting of the audio capture, problems with proper struct ivtv and struct ivtv_stream housekeeping, struct ivtv_open_id.v4l2_fh abuse, and $DIETY knows what else. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
/*
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file operation functions
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Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
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Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef IVTV_FILEOPS_H
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#define IVTV_FILEOPS_H
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/* Testing/Debugging */
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int ivtv_v4l2_open(struct file *filp);
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ssize_t ivtv_v4l2_read(struct file *filp, char __user *buf, size_t count,
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loff_t * pos);
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ssize_t ivtv_v4l2_write(struct file *filp, const char __user *buf, size_t count,
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loff_t * pos);
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int ivtv_v4l2_close(struct file *filp);
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unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait);
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unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table * wait);
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int ivtv_start_capture(struct ivtv_open_id *id);
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void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end);
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int ivtv_start_decoding(struct ivtv_open_id *id, int speed);
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void ivtv_mute(struct ivtv *itv);
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void ivtv_unmute(struct ivtv *itv);
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/* Utilities */
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/* Shared with ivtv-alsa module */
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int ivtv_claim_stream(struct ivtv_open_id *id, int type);
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void ivtv_release_stream(struct ivtv_stream *s);
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#endif
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